- September 26th Thursday, 1806
- September 25th Thursday, 1806
- September 24th Wednesday, 1806
- September 23rd Thursday, 1806
- September 22nd Monday, 1806
- September 21st Sunday, 1806
- September 20th Monday, 1806
- September 19th Sunday, 1806
- September 18th Saturday, 1806
- September 17th Friday, 1806
- Ambrose Tubbs, Stephenie, ed., The Lewis and Clark Companion: An Encyclopedic Guide to the Voyage of Discovery
- Ambrose, Stephen. Undaunted Courage: Meriwether Lewis Thomas Jefferson and the Opening of the American West
- Devoto, Bernard, ed. The Journals of Lewis and Clark
- Moulton, Gary E., ed. The Journals of the Lewis and Clark Expedition, Volume 1
Atlas of the Lewis and Clark Expedition
- Moulton, Gary E., ed. The Journals of the Lewis and Clark Expedition, Volume 10
The Journal of Patrick Gass, May 14, 1804–September 23, 1806
- Moulton, Gary E., ed. The Journals of the Lewis and Clark Expedition, Volume 11
The Journals of Joseph Whitehouse, May 14, 1804–April 2, 1806
- Moulton, Gary E., ed. The Journals of the Lewis and Clark Expedition, Volume 2
August 30, 1803–August 24, 1804
- Moulton, Gary E., ed. The Journals of the Lewis and Clark Expedition, Volume 3
August 25, 1804–April 6, 1805
- Moulton, Gary E., ed. The Journals of the Lewis and Clark Expedition, Volume 9
The Journals of John Ordway, May 14, 1804–September 23, 1806, and Charles Floyd, May 14–August 18, 1804
- Ronda, James P. Lewis and Clark Among the Indians
